It is necessary to consult a doctor before you begin any physically ______ exerc

游客2025-06-11 20

问题 It is necessary to consult a doctor before you begin any physically ______ exercise programs.

选项 A、labored
B、sparing
C、powerful
D、demanding

答案 D

解析词汇题。labored意为“吃力的”；sparing意为“节约的”；powerful意为“强大的”；demanding意为“要求高的”，在语义上，只demanding符合，故选D。

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